Home / 43,305.30-64,964.49-18,345.45

Finding the Fourth Proportional to 43,305.30, 64,964.49 and 18,345.45

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Solution

The fourth proportional to 43,305.30, 64,964.49 and 18,345.45 is: 27,520.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,305.30 : 64,964.49 = 18,345.45 : x
  2. Step 2: Convert to fraction form
    43,305.30/64,964.49 = 18,345.45/x
  3. Step 3: Cross multiply
    43,305.30x = 64,964.49 × 18,345.45
  4. Step 4: Simplify right side
    43,305.30x = 1,191,802,803.07
  5. Step 5: Solve for x
    x = 1,191,802,803.07/43,305.30
  6. Step 6: Final answer
    x = 27,520.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.